diff --git a/G/GAP_pkg/GAP_pkg_gauss/build_tarballs.jl b/G/GAP_pkg/GAP_pkg_gauss/build_tarballs.jl
index 1508e3b1b1e..e2e5e692a0e 100644
--- a/G/GAP_pkg/GAP_pkg_gauss/build_tarballs.jl
+++ b/G/GAP_pkg/GAP_pkg_gauss/build_tarballs.jl
@@ -2,10 +2,10 @@
 # `julia build_tarballs.jl --help` to see a usage message.
 include("../common.jl")
 
-gap_version = v"400.1401.5"
+gap_version = v"400.1500.0"
 name = "gauss"
 upstream_version = "2024.11-01" # when you increment this, reset offset to v"0.0.0"
-offset = v"0.0.2" # increment this when rebuilding with unchanged upstream_version, e.g. gap_version changes
+offset = v"1.0.0" # increment this when rebuilding with unchanged upstream_version, e.g. gap_version changes
 version = offset_version(upstream_version, offset)
 
 # Collection of sources required to build this JLL